Thanks for your question on Healthcare Magic.
I can understand your concern.
In my opinion, you are mostly having post infectious bronchitis.
Bronchitis is inflammation of airways and this is common after viral upper
respiratory tract infection (URTI) like flu.
Bronchitis can cause cough, wheezing, headache, fatigue, muscle pain etc.
So
consult pulmonologist and get done
1. Clinical examination of respiratory system
2. PFT (pulmonary function test).
PFT will not only diagnose bronchitis but it will also tell you about severity of the disease and treatment is based on severity only.
You will mostly improve with inhaled
bronchodilator (formoterol or salmeterol) and inhaled
corticosteroids (ICS) (budesonide or
fluticasone).
Don't worry, you will be alright with all these.
Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.